GM 383 Base Marine Engine • Cast Iron Vortec Heads • Roller Cam
MBP3830CT - GM 383 Base Marine Cast Vortec Heads
HP & Torque: 405 HP / 450 FT LBS
Cast Iron Heads
Roller Cam
Cast Steel Crank
Part #: MBP3830CT


Seasoned 4-bolt main
Max .040 bore
One piece rear main seal
Sonic tested to assure wall thickness
Align honed main bearing bore

Rotating Assembly:

New cast steel premium crank
Hypereutectic pistons
New roller camshaft

Cylinder Heads:

Cast Iron Vortec
1.25 dia. valve springs, hardened retainers and keepers
2.02 swirl polished intake valves
1.60 swirl polished exhaust valves
Elgin hardened push rods
Long slot rockers with positive lock adjusting nuts

Cam Specs:

Cam Type: Roller
.503 Intake .510 Exhaust
224 Intake / 230 Exhaust duration
@ .050 - 112 degree lobe separation

Also Includes:

New cast iron marine intake
Polished aluminum valve covers
Oil pan
Brass freeze plugs
Dyno test results shipped with engine


12 month unlimited hour on pleasurecraft only. No warranty on commercial use.

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